.lunbo_wrap {
    position: relative;
    overflow: hidden;
    width: 100%;
    height: 100%;
}

.pic_box {
    width: 100%;
    height: r(345px);
    white-space: nowrap;
    font-size: 0;
}

.pic_box li {
    position: relative;
    height: r(345px);
    display: inline-block;
}

.pic_box li img {
    width: 100%;
    display: block;
}

.pannel {
    position: absolute;
    left: 0;
    width: 100%;
    bottom: 1%;
    text-align: center;
}

.pannel li {
    display: inline-block;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: rgb(183,183,183);
    margin-right: 4px;
}

.pannel .active {
    background: red;
    border-color: red;
}